mathematics

Maria Deijfen

Maria Deijfen is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Maria Deijfen rather than just read about it. In short: Maria Deijfen (born 1975) is a Swedish mathematician known for her research on random graphs and stochastic processes on graphs, including the Reed–Frost model of epidemics. She is a professor of mathematics at Stockholm University.

Key takeaways

Maria Deijfen belongs to mathematics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Maria Deijfen to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Maria Deijfen from memory before moving on to harder problems.

Reference excerpt

Maria Deijfen (born 1975) is a Swedish mathematician known for her research on random graphs and stochastic processes on graphs, including the Reed–Frost model of epidemics. She is a professor of mathematics at Stockholm University.

Education and career Deijfen was educated at Stockholm University, earning a licenciate in 2001, a doctorate in 2004, and a habilitation in 2008. Her doctoral dissertation, Stochastic Models for Spatial Growth and Competition, was supervised by Olle Häggström. After completing her doctorate, she became a postdoctoral researcher at the Mittag-Leffler Institute, Vrije Universiteit Amsterdam, Chalmers University, and Delft University of Technology before returning to Stockholm as a junior faculty member in 2006. She was promoted to full professor in mathematical statistics in 2015.

Recognition Deijfen was one of the 2018 recipients of the Paul R. Halmos – Lester R. Ford Award of the Mathematical Association of America for her paper with Alexander E. Holroyd and James B. Martin, "Friendly Frogs, Stable Marriage, and the Magic of Invariance", using combinatorial game theory to analyze the stable marriage problem.

References

External links Home page

Worked examples

Example 1 — a first encounter with Maria Deijfen

Start with the simplest possible case. Write down what Maria Deijfen claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Maria Deijfen before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Maria Deijfen ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Maria Deijfen

In research: Maria Deijfen appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Maria Deijfen in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Maria Deijfen is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1975 births, Academic staff of Stockholm University, Graph theorists, so understanding it makes those chapters shorter.
In everyday life: Look for Maria Deijfen outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Maria Deijfen in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Maria Deijfen means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Maria Deijfen out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Maria Deijfen in simple terms?

Why does Maria Deijfen matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Maria Deijfen?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Maria Deijfen.